Binder for down-hanging sheets



April 8, 1930. H. L. DE LlsLE 1,753,356

BINDER EoR DowN HANGING sEEETs Filed Deo. so, 1927 Patented Apr. 8, 1930 HAROLD L. DE LIsLE,foE CHICAGO, ILLINOIS BINDER Eon DOWN-HANGING SHEETS Application mea Deember s'o, 1927. serial No. 243,630.,y

' The present improvements relate to binders of the kind adapted to hold down-hanging blue prints and the like. It is old to provide a pair of strips or clamping` members adapted to be positioned face to Yface and having bolts transversely through themfor holding the sheets. According to lsuch prior practice the sheets were required to be perforated to accommodate the bolts, the bolts passing through edgeportions of the sheets. Such perforation not -only requires considerable time but in some instances mutilation of the sheets is objectionable. Furthermore, in applying such perforated sheets to the binder it has been necessary to remove the clamping nuts from the. bolts, then remove one of the,

clainping members or strips, then place the sheet in position on the bolts or remove it therefrom as the'particular instance requires, then replace t-lie binding strip, and then re' apply the nuts. Such older practice istherefore quite inconvenient, causes much loss of time, and is otherwise objectionable.

It has also been suggested heretofore tov dispense with the transverse bolts and hold the sheets between interiorly recessed strips through the clamping action of springs pressing the strips toward each other, as Witness the U. S. patent to Newbaker, No. 686,166 of 30 October 31,1899, and that to Memmler, No.

1,165,108 of December 21, 1915.

While various objections to the spring-clip type of sheet-holder might be pointed out, it will be sufficient here to indicate that the objects of these improvements include the provision of a simple and cheapbinder of the' character described lhaving few parts and parts not likely to get outlofy order, `and in which a single sheet or a considerable numg 40 ber of sheets may be conveniently inserted and removed, and in a brief space oftime,

, and be firmly and securely held against retraction throughoutalong periodof use,and

to provideY a construction bywhich the individual holders may occupy but relatively small space whereby a relatively large number of such holders may be placed side by side in a cabinet of `given depth andthe capacity of the cabinet thereby increased. The presf ent invention provides improved advantages member.

'provided with recesses `v`as 12 and 13 respec- Aalso accessibility to particular onesV of the holders when normally arranged in the cabf inet of file holder over such'devicesare are shown in the patents mentioned. Other obects and advantages willappear hereinafter.' V55 K In the accompanying drawings, which form a part of this specification, Figures. 1, 2, 3 s

Yand 4 are to p, front, bottom and rear views re vspectively of the preferred form .of device complete; Fig. 5 is an enlarged fragmentary7 broken face view 'ofthe device of F ig. 1 .held by lateral rack bars of the kind shown inside view in 8; Fig.` 6 is an enlarged sectional rView as on the line 6 6 of Fig. 5; 7-'is a fragmentary ldetail 'showing the application rof a stapleV for holding the bolt; 8 shows Va'inodified construction for the'device when made of metal; andFig. 9 is a fragmentary View of the inner face of the rear clamping l -70 According to my preferred construction the binding members 10 and 11 lare of wood. When made from thirty-four'to/"thirty-sixv inches in length they willA accommodate blue prints,.tracings, etc. of thelarger sizes ordinarily found, but the length of these members may be increased ordecreased according to particular needs. V. In lmy practice the wood strips 10 and 11 are approximately one and one quarter incheshigh'and about livesixteenths of an inch in thickness. They are preferably'made of well seasoned hardwood. It is advantageous to have thejstrips vfairly thin whereby a considerable number ofthemmay be positionedfside by side ina cabinet ofgivendepth. v' l l Y y .From'Fig 6 t will well'be noted that the strips or binding members 10 and 11 are tively on their normally inner surfaces, these recesses extending from near the topedges of the binding members to near their bot- .tom edges respectivelyv andbeing detinedby upper riblike extensions 14 and 15 respe-c\A ,Y

tivelyand lower rib-like extensions 16 and 9 17 respectively. When these opposed riblike extensions abut each other the recesses 12 and 13 coalesceito form a hollow interior extending from end to endV of the strips.V`

'A- plurality of bolts 2O (ordinarily foul '100 will be quite ample) are carried by the rear binding member 11, the heads of the bolts being Hush with the rear surface of the strip in order to save space. A staple 21 positioned in the kerf of each bolt-head holds the bolt against retraction and also against turn- The; bolts -ZOHare -positioned substantially midway between the top and bottom of the binding members and extend through the binding member 10. .Anut; member 23 having arelatively longI sleeve 23a is threaded upon the free end of the bolt. This Vsleeve 23a may well extend entirely through the strip 10. The hole 24 in the Ystrip through which thesleeve 23a extends is considerably larger in diameter thanthe sleeve to permit a'tiltedposition of the sleeve therein. AA washer 25 having a substantially spherical bearing surface lies between the outer flange .of thenut23 and a concave seat `formed in the strip 10. The washer 25 also has a hole number of sheets, thel power being` applied between the fulcrumand the work and thereby constituting the device a lever of the third class.

I The relatively long sleeve 23 not only provides- .for such a large amount of threaded area as adds life to the threaded members, but, importantly, it provides lthat the bolt Y 20.*may be much shorter than would be the case if an ordinary nut were applied resting against the outer face of the strip 10, andl thus the construct-ion shown economizes space s in the direction of the thickness of the device and enables the holders complete to be positioned in the cabinet relatively close to each other.

The nut members 23 have their outer edges milledwhereby they may easily be gripped by the lingers. In applying sheets or removing them the binder complete is first removed `from the rack and laid upon a table. The

...nut members 28 are then retracted, and for i removing sheets a Aslight retraction is sufficient whilefor replacing sheets the retraction Vof the nuts must of course be` suiicient to al- -lowA the jaws at 16 and 17 to spread the required distance. In inserting the sheets their edges are simply pushed between the jawsand within the hollow interior of the device. It v.is sufficient if they simply enter the structure well within the gripping area of the jaws, but ordinarilyV they are pushed inward until they comezaga-inst the bolts 20 vwhich serve as stops providing the desired right-angular relation o-f the sheets to the binder. The hollow interior space between the bolt and the jaws provides ample room for the upper ends of the sheets so that the full gripping effect is had at the aws. When the nut members are `tightenedupon thebolts Vit is not necessary thata great deal of force be employed, and the holding effect of even a. slight tightening of the nuts is surprisingly great. This makes for Vnotable ease in operation both in tightening and in releasing the nuts.

"Y The rear strip or binding member 11 is preferably suificiently longer than the front strip 10 to permit the dev-ice to be held in the rack merely by the rear strip. This feature is not new in itself.

A card holder 26, Fig. 2, is adapted to show data concerning the prints or other subject matter within a particular file. When the binders are held in such a rack as is shown in Fig. 8 they may be tilted back to disclose such data for ready reference.

According to Fig. 8 the binding members l30 and 31 are pressed from sheet material :fr

such as iron, the upper edge portions being extended at 31 to form a fulcruming seat. This figure also shows how such devices may be held in rack members 33 held by cabinet walls 34 (Fig. 5).

l contemplate such modifications also as are included in the appended claims.

I claim:

1. A binder for down-hanging sheets comprising a pair of long'and thin strip-like members face to face and formed trough-like interiorly in the longitudinal direction and having fulcruming surfaces at their upper edge portions and binding surfaces at their lower edge portions respectively, and a pluv rality of bolts carried by one of said members intermediate the top and bottom edge pon tions thereof and projecting transversely of said members, with a nut on each of said bolts bearing against the other one of said members for drawing the members toward 'each other for clamping sheets between said binding surfaces, at least one of said members extending at each end thereof beyond the sheet material normally held in the device whereby the device as a whole may be supported at its opposite end portions.

2. The combination of claim 1 hereof in which said nuts respectively comprise a sleeve`-lile part projecting into the body of one of said members.

3. The binder of claim 1 hereof in which said nuts respectively comprise a sleeve-like part projecting into the body of one of said members, in combination withV a washer on` Vsaid sleeve-lile part having a substantially spherical convex surface engaging a substantially spherical concave recess formed 1n the adjacent one of said members.

HAROLD L. DE LISLE.

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